feat: peer store (#470)

* feat: peer-store v0

* chore: apply suggestions from code review

Co-Authored-By: Jacob Heun <jacobheun@gmail.com>

test/utils/base-options.js

@@ -0,0 +1,13 @@
+'use strict'
+
+const Transport = require('libp2p-tcp')
+const Muxer = require('libp2p-mplex')
+const mockCrypto = require('../utils/mockCrypto')
+
+module.exports = {
+  modules: {
+    transport: [Transport],
+    streamMuxer: [Muxer],
+    connEncryption: [mockCrypto]
+  }
+}

test/utils/creators/peer.js

@@ -0,0 +1,24 @@
+'use strict'
+
+const PeerId = require('peer-id')
+const PeerInfo = require('peer-info')
+
+const Peers = require('../../fixtures/peers')
+
+module.exports.createPeerInfo = async (length) => {
+  const peers = await Promise.all(
+    Array.from({ length })
+      .map((_, i) => PeerId.create())
+  )
+
+  return peers.map((peer) => new PeerInfo(peer))
+}
+
+module.exports.createPeerInfoFromFixture = async (length) => {
+  const peers = await Promise.all(
+    Array.from({ length })
+      .map((_, i) => PeerId.createFromJSON(Peers[i]))
+  )
+
+  return peers.map((peer) => new PeerInfo(peer))
+}

test/utils/mockConnection.js

@@ -0,0 +1,50 @@
+'use strict'
+
+const { Connection } = require('libp2p-interfaces/src/connection')
+const multiaddr = require('multiaddr')
+
+const pair = require('it-pair')
+
+const peerUtils = require('./creators/peer')
+
+module.exports = async (properties = {}) => {
+  const localAddr = multiaddr('/ip4/127.0.0.1/tcp/8080')
+  const remoteAddr = multiaddr('/ip4/127.0.0.1/tcp/8081')
+
+  const [localPeer, remotePeer] = await peerUtils.createPeerInfoFromFixture(2)
+  const openStreams = []
+  let streamId = 0
+
+  return new Connection({
+    localPeer: localPeer.id,
+    remotePeer: remotePeer.id,
+    localAddr,
+    remoteAddr,
+    stat: {
+      timeline: {
+        open: Date.now() - 10,
+        upgraded: Date.now()
+      },
+      direction: 'outbound',
+      encryption: '/secio/1.0.0',
+      multiplexer: '/mplex/6.7.0'
+    },
+    newStream: (protocols) => {
+      const id = streamId++
+      const stream = pair()
+
+      stream.close = () => stream.sink([])
+      stream.id = id
+
+      openStreams.push(stream)
+
+      return {
+        stream,
+        protocol: protocols[0]
+      }
+    },
+    close: () => { },
+    getStreams: () => openStreams,
+    ...properties
+  })
+}